I've seen those in lkq.Speaking of injector blowers, mid-80s Nissan 300ZXs had them... http://www.zcar.com/forum/11-84-89-tech-discussion-forum/149755-injector-cooling-blower.html
My guess would be that he won't tune it, is because it's a liability.
Someone could try to blame a dusted turbo on him, when it reality it's from say a k & n. (Just an example)
Or, with how none really outflow the OEM filter, it could cause big problems with a tune. Ie: high egts, smoke, etc.
Just my take on it.
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